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      <a id="sfpassign"></a>
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      <a id="IndexSfpassign" class="indexterm"></a>
      <div class="refnamediv">
        <h2>
          <span class="refentrytitle">sfpassign</span>
        </h2>
        <p>sfpassign — 
      Assigns all presets of a SoundFont2 (SF2) sample file to a sequence of progressive index numbers.
          </p>
      </div>
      <div class="refsect1">
        <a id="idp146488896"></a>
        <h2>Description</h2>
        <p>
      Assigns all presets of a previously loaded SoundFont2 (SF2)
      sample file to a sequence of progressive index numbers. These
      opcodes allow management the sample-structure of SF2 files. In
      order to understand the usage of these opcodes, the user must
      have some knowledge of the SF2 format, so a brief description of
      this format can be found in
      the <a class="link" href="MiscSf2.html" title="Appendix G. SoundFont2 File Format"><em class="citetitle">SoundFont2 File Format
      Appendix</em></a>. 
    </p>
        <p>
      <span class="emphasis"><em>sfpassign</em></span> should be placed in the header section of a Csound orchestra.
    </p>
      </div>
      <div class="refsect1">
        <a id="idp146492144"></a>
        <h2>Syntax</h2>
        <pre class="synopsis"><span class="command"><strong>sfpassign</strong></span> istartindex, ifilhandle[, imsgs]</pre>
      </div>
      <div class="refsect1">
        <a id="idp146494208"></a>
        <h2>Initialization</h2>
        <p>
      <span class="emphasis"><em>istartindex</em></span> -- starting index preset by the user in bulk preset assignments.
    </p>
        <p>
      <span class="emphasis"><em>ifilhandle</em></span> -- unique number generated by <span class="emphasis"><em>sfload</em></span> opcode to be used as an identifier for a SF2 file. Several SF2 files can be loaded and activated at the same time.
    </p>
        <p>
      <span class="emphasis"><em>imsgs</em></span> -- if non-zero messages are suppressed.
    </p>
      </div>
      <div class="refsect1">
        <a id="idp146498160"></a>
        <h2>Performance</h2>
        <p>
      <span class="emphasis"><em>sfpassign</em></span> assigns all presets of a previously loaded SF2 file to a sequence of progressive index numbers, to be used later with the opcodes <a class="link" href="sfplay.html" title="sfplay"><em class="citetitle">sfplay</em></a> and <a class="link" href="sfplaym.html" title="sfplaym"><em class="citetitle">sfplaym</em></a>. <span class="emphasis"><em>istartindex</em></span> specifies the starting index number. Any number of <span class="emphasis"><em>sfpassign</em></span> instances can be placed in the header section of an orchestra, each one assigning presets belonging to different SF2 files. The user must take care that preset index numbers of different SF2 files do not overlap.
    </p>
        <p>
      These opcodes only support the sample structure of SF2 files. The modulator structure of the SoundFont2 format is not supported in Csound. Any modulation or processing to the sample data is left to the Csound user, bypassing all restrictions forced by the SF2 standard.
    </p>
      </div>
      <div class="refsect1">
        <a id="idp146503616"></a>
        <h2>Examples</h2>
        <p>
      Here is an example of the sfpassign opcode. It uses the file <a class="ulink" href="examples/sfpassign.csd" target="_top"><em class="citetitle">sfpassign.csd</em></a>.
      </p>
        <div class="example">
          <a id="idp146505472"></a>
          <p class="title">
            <strong>Example 809. Example of the sfpassign opcode.</strong>
          </p>
          <div class="example-contents">
            <p>See the sections <a class="link" href="UsingRealTime.html" title="Real-Time Audio"><em class="citetitle">Real-time Audio</em></a> and <a class="link" href="CommandFlags.html" title="Csound command line"><em class="citetitle">Command Line Flags</em></a> for more information on using command line flags.</p>
            <pre class="programlisting">
<span class="csdtag">&lt;CsoundSynthesizer&gt;</span>
<span class="csdtag">&lt;CsOptions&gt;</span>
<span class="comment">; Select audio/midi flags here according to platform</span>
-odac -+rtmidi=virtual -M0   <span class="comment">;;;realtime audio out, virtual midi in</span>
<span class="comment">;-iadc    ;;;uncomment -iadc if RT audio input is needed too</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o sfpassign.wav -W ;;; for file output any platform</span>
<span class="csdtag">&lt;/CsOptions&gt;</span>
<span class="csdtag">&lt;CsInstruments&gt;</span>

<span class="ohdr">sr</span> <span class="op">=</span> 44100
<span class="ohdr">ksmps</span> <span class="op">=</span> 32
<span class="ohdr">nchnls</span> <span class="op">=</span> 2
<span class="ohdr">0dbfs</span>  <span class="op">=</span> 1

<span class="comment">;load two soundfonts</span>
gisf	<span class="opc">sfload</span>	"07AcousticGuitar.sf2"
gir	<span class="opc">sfload</span>	"01hpschd.sf2"
	<span class="opc">sfplist</span> gisf
	<span class="opc">sfplist</span> gir
	<span class="opc">sfpassign</span>	0, gisf	
	<span class="opc">sfpassign</span>	1, gir

<span class="oblock">instr</span> 1	<span class="comment">; play guitar from score and midi keyboard - preset index = 0</span>

	<span class="opc">mididefault</span>	60, p3
	<span class="opc">midinoteonkey</span>	p4, p5
inum	<span class="opc">init</span>	p4
ivel	<span class="opc">init</span>	p5
ivel	<span class="opc">init</span>	ivel<span class="op">/</span>127					<span class="comment">;make velocity dependent</span>
kamp	<span class="opc">linsegr</span>	1, 1, 1, .1, 0
kamp	<span class="op">=</span> kamp<span class="op">/</span>5000						<span class="comment">;scale amplitude</span>
kfreq	<span class="opc">init</span>	1						<span class="comment">;do not change freq from sf</span>
a1,a2	<span class="opc">sfplay3</span>	ivel, inum, kamp<span class="op">*</span>ivel, kfreq, 0			<span class="comment">;preset index = 0</span>
	<span class="opc">outs</span>	a1, a2
	
	<span class="oblock">endin</span>
	
<span class="oblock">instr</span> 2	<span class="comment">; play harpsichord from score and midi keyboard - preset index = 1</span>

	<span class="opc">mididefault</span>	60, p3
	<span class="opc">midinoteonkey</span>	p4, p5
inum	<span class="opc">init</span>	p4
ivel	<span class="opc">init</span>	p5
ivel	<span class="opc">init</span>	ivel<span class="op">/</span>127					<span class="comment">;make velocity dependent</span>
kamp	<span class="opc">linsegr</span>	1, 1, 1, .1, 0
kamp	<span class="op">=</span> kamp<span class="op">/</span>1000						<span class="comment">;scale amplitude</span>
kfreq	<span class="opc">init</span>	1						<span class="comment">;do not change freq from sf</span>
a1,a2	<span class="opc">sfplay3</span>	ivel, inum, kamp<span class="op">*</span>ivel, kfreq, 1			<span class="comment">;preset index = 1</span>
	<span class="opc">outs</span>	a1, a2
	
<span class="oblock">endin</span>
	
<span class="csdtag">&lt;/CsInstruments&gt;</span>
<span class="csdtag">&lt;CsScore&gt;</span>
<span class="stamnt">f</span>0  60				<span class="comment">; stay active for 1 minute</span>

<span class="stamnt">i</span>1 0 1 60 100
<span class="stamnt">i</span>1 + 1 62 &lt;
<span class="stamnt">i</span>1 + 1 65 &lt;
<span class="stamnt">i</span>1 + 1 69 10

<span class="stamnt">i</span>2 5 1 60 100
<span class="stamnt">i</span>2 + 1 62 &lt;
<span class="stamnt">i</span>2 7 1 65 &lt;
<span class="stamnt">i</span>2 7 1 69 10

<span class="stamnt">e</span>
<span class="csdtag">&lt;/CsScore&gt;</span>
<span class="csdtag">&lt;/CsoundSynthesizer&gt;</span>
</pre>
          </div>
        </div>
        <p><br class="example-break" />
    </p>
      </div>
      <div class="refsect1">
        <a id="idp146509760"></a>
        <h2>See Also</h2>
        <p>
      <a class="link" href="sfilist.html" title="sfilist"><em class="citetitle">sfilist</em></a>,
      <a class="link" href="sfinstr.html" title="sfinstr"><em class="citetitle">sfinstr</em></a>,
      <a class="link" href="sfinstrm.html" title="sfinstrm"><em class="citetitle">sfinstrm</em></a>,
      <a class="link" href="sfload.html" title="sfload"><em class="citetitle">sfload</em></a>,
      <a class="link" href="sfplay.html" title="sfplay"><em class="citetitle">sfplay</em></a>,
      <a class="link" href="sfplaym.html" title="sfplaym"><em class="citetitle">sfplaym</em></a>,
      <a class="link" href="sfplist.html" title="sfplist"><em class="citetitle">sfplist</em></a>,
      <a class="link" href="sfpreset.html" title="sfpreset"><em class="citetitle">sfpreset</em></a>
    </p>
      </div>
      <div class="refsect1">
        <a id="idp146518528"></a>
        <h2>Credits</h2>
        <p>
      </p>
        <table border="0" summary="Simple list" class="simplelist">
          <tr>
            <td>Author: Gabriel Maldonado</td>
          </tr>
          <tr>
            <td>Italy</td>
          </tr>
          <tr>
            <td>May 2000</td>
          </tr>
        </table>
        <p>
    </p>
        <p>New in Csound Version 4.07</p>
      </div>
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